Introduction to physics 212

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Introduction to physics 212 Dr. Muhammad Ali Yousuf maliyousuf@towson.edu

Plan for Today

A few points before we start Course material: https://tinyurl.com/tuphys Expert TA has two versions of HW 1 Formula sheet now available You don’t need to buy OpenStax book (DOWNLOAD it) Book does not explain some topics in detail Physics by Cutnell and Johnson College Physics, by Wilson, Buffa and Lou

PhET Simulations https://phet.colorado.edu/en/simulations/category/physics/electricity-magnets-and-circuits

18.3 Coulomb’s Law The magnitude of the electrostatic force exerted by one point charge on another point charge is directly proportional to the magnitude of the charges and inversely proportional to the square of the distance between them.

Let’s solve some problems from the book …

The Electric Field Point charge q: The electric field does not depend on the test charge. Point charge q:

Let’s solve some problems from the book …

CCD Camera (Charge Coupled Device) https://www.youtube.com/watch?v=_KMKYIw8ivc https://en.wikipedia.org/wiki/Charge-coupled_device

And God said: and there was light